Relay.



PATBNTED MAR. 12, 1907. R. H. MANSGN.

RELAYx APPLICATION FILED MAY25,1904. RBNEWED FEB.11. 1907.

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im woll/ l l a D v 4 l y l/ l l A" l j G' M M A therein to theaccompanying drawing.

Y purpose'aioresaid having a relatively large air-gap'ybetweenjtliepole-piece and the arma.-

. tact With an angularly-disposed contact-strip i`citiaenlfof"thefUnited States, residing at agar kfi-i. Manson, Vor"sprain, o no', j

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" Be it ,known thatfL RAY H. Manson, a I

Elyria, in the ountyof Lorain and State of Ohio?"hjaye-invented certainnew and useful improvements in Relays, of which the following isi-aspecification, reference being had This invention relates to relays, andmore particularlyltolcut-out relays, and has for its objjeictto providean improved relay for the turerto render the relay. insensitive to smallf currentsWithut,interfering with the positive' action otthe'relay underthe' influence of a 'local-circuit current, said relay also having Hanarmature-prov`idedwith an elongatedl angularly-disposed portion servingas a couni terwleight to produce a positive electrical conl overlyingthe armature without the interposition ofsplring action, the armaturehaving a special forni of loose pivotal support at` the l by means oiwhich the relay is secured to the ofthe contact-strip cut away.

frontend of, the relay,l so that the armature moved Afor purposes ofinspection or repair.

Other 'features lofthe invention will appear more articularly in theannexed specification, t ie claims appended thereto, and in thedrawingain whic V Figure; represents the relay in side elevation., Fig.2 isa plan view thereof. Fig. 3 is a fragmentary plan view with the.contactstrip removed. y Fig. 4 is a front elevation. ,i Fig.l Sisasimilar view with the angular end l' Referring to the. drawings, aindicates the i coil of the relay, .which 1s made up of the l usualline-wire windings mounted upon a iron core, which projects `a shortvdistance from the forwardface of the bobbin to form the pole-piece b,while the rear end is exl tended and provided with screw-tlneads c,

usual form of rack or frame.

Mounted on the screw-threaded end of the 4core and screwedl theretol'iva set-nut is a i sett-iron bar d, of rectangular form,- serving j layunder the influence of a local-circuit cur.

as a conductor for theextern-al magnetic iluX. j Secured to the upperside: pf--sa1d bar d by l screws m m are contact-strips 7i and k, which.l

. -`Specification. of Letters Patent.

j Patented Maren 12,1967.

" v` Application iled'May 25,1904. Renewedffebruary 1.1, 1907` SerialNo. 356,872.

are insulated from each other by the usual insulating-blocks Z. top ofsaid bar d and terminates at a oint a said. strip is bent over the endof said bar. Contact-strip extends along the bar d and projects somedistance beyond the end therei of and is bent down at right angles andterstrip being provided with a circular. orifice,

through which the upper end of stud p is passed to retain the strip inproper alinement.

The for-ward. end of the bar d is provided E with twolaterally-projectingpins or studs g, serving as pivots for thearmaturec,l which is i a rectangular stamping of soft iron, having arelatively long rear end @"running longitudicontact-strip h and bar dand serving to coun'- terbalance the forward end of the armature t andhold the platinum contact o thereon l against the point n ofcontactfstrip 7c.r

Near the bend of the armature are lateral depending .lugs or earsff,having notches or recesses in the lower edges which are slipped over andengage-the pinsg g, and it is to be noted that this construction affordsan eiicient and convenient pivotal mounting Jfor the armature,permitting the latter to be i readily adjusted or removed by merelylifting contact-strip k and slipping the armature Strip 7L lies alongthe- 'little beyond the forward end thereo When nallyof and' normallyresting upon the top of may bejquiclrly adjusted in position or re-'j ll on or off of' the pins g g and over the stud p.

VTo permit the armature to swing freely vbobbin or spool and surroundingthe softl about the stud p, a section of the-former is cut away to fornia recess e, extending around said stud and for a short distancev intothe front face of the armature.A The rent. To limit the movement. of thearmature toward the pole, the insulation Z below strip 1c is extended toform a shoulder l',

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against which the end of the horizontal portion e of said armature abutsas the latter swings upward.

In order to establish an eflicient electrical connection betweencontact-strip 7L and the armature e, a flexible U-section, of metal wire-or other good conductor,is secured by screws or rivets ifi, passedthrough suitable loops in the ends thereof and tapped into thearmatureand the strip h, respectively, near the bends thereof.

In order to prevent the armature from being lifted off its pintles orpivots during ordinary use, the flange g on the post p is extended out,so that it overlies the rear edge of opening in the armature. It mayalso overlie the side pieces; but I find the former construction (shown.in dotted lines in Fig: 2) to be sufficient. l

Having thus described my invention, what. I claim, yand desire to secureby Letters Patent, is*

1. A relay comprising an electromagnet having a flux-bar extendinglongitudinally thereof, an angular armature pivoted thereto, and contactmembers carried by said fluxbar, one of which is electrically connectedto said armature, and the other of which makes electrical contacttherewith.

2. A relay comprising an electromagnet, having a iiux-bar extendinglongitudinally `thereof, contact members carried by said iiux-bar, meansfor connecting one of said contact members to said armature independentof the pivotal connection, and means on the other contact member whichconnects with the armature.

3; A relay comprising an electromagnet having a linx-bar extenonnglongitudinally thereof, an angular armature removably pivoted to saidflux-bar, a contact member, flexible means connecting said contactmember to said armature, another 'contact'member normallyin electricalcontact with said armature, and means supporting said last-named contactmember and insulating it from said armature when the magnet isenergized.

4. A relay, comprising lan electromagnet having a soft-iron flux-barextendingralong the top thereof, insulated contact-strips extendingalong said bar, one of said strips having anangular end provided with acontact, and an angular armature loosely and liftably ivoted on said barand having a contact at 1ts forward end coperating with the contact onthe angular-ended strip, substantially as described.

5. A relay, comprising an electromagnet, a soft-iron flux-bar extendingalong the top thereof, insulated contact-strips extending longitudinallyof said bar, one of said strips aving an angular end depending in frontof the magnet-pole and provided with a contact, an insulating-stud onthe forward end of said bar passing through said strip, serving to alineand space the same, and an angular armature loosely and liftably pivotedon said bar and between said contact-strips, said armature having acontact on its forwardl end cooperating with the contact on theangularended strip, substantially as described.

6. A relay, comprising anelectromagnet,

a soft-iron flux-bar extending along the top` thereof, insulatedcontact-strips extending longitudinally of said bar, one'of said stripshaving an angular end depending in front of the magnet-pole and providedwithacontact,

" an insulating-stud on forward end of said bar passing through saidstrip serving to aline and space the same, an angular armature looselyand liftably pivoted on said bar and between saidt-contact-strips, saidarmature having a contact on its forward end coperatingwith the contacton the angular-ended strip and a flexible conductor connecting saidarmature and the other contact-strip, substantially as described.

7. A relay, 4comprising an ele'ctromagnet having a flux-bar extendinglongitudinally thereof, a pivot-pin on the forward end of said bar, anarmature having a vertical and a .horizontalme1nber,. the latterextending along said bar and serving to counterbalance said armature,and depending lugs on said armature havingopen slots engaging saidpivot-pins, substantially as described.

8; A relay, comprising an electromagnet having a flux-bar extendinglongitudinally thereof, contact-springs mounted on said bar, insulationspacing said springs, and an armature pivoted to forward end of said barandl having a counterweight member extending rearwardly along said bar,said insulationv between the springs having a shoulder extending in thepath of the counterweight member to limit the movement of the armaturetoward `the magnet-pole, substantially as described.

In testimony whereof I affix my signature' in presence of two'witnesses..l

a RAY H. MAN-SON. Witnesses:

l WILLIAM W.' DEAN.

S. A. BEYLAND.

